There's no need to tell you why that's bad, right? ;)
i seem to recall the internal version being modified/integrated, so it isnt possible to use the system readline feel free to check it out and lemme know :p
There's a --with-system-readline option. I'm doing a test build now and will be back when I've tested it.
Works as a charm; want me to commit it as a new rev, or you'll take care of that?
Fixed in 6.7.1-r2.